metabarcoding – mycolab.ai

Metabarcoding Unveils Seasonal Soil Microbiota Shifts and Their Influence on Boletus edulis and Boletus reticulatus Mycelium in Quercus robur Stands

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This research studied how soil bacteria and fungi change across fall months in oak forests in Spain and how these changes relate to the growth of valuable edible mushrooms (Boletus species). Scientists used DNA analysis to identify thousands of different microorganisms in the soil. They found that September had the most diverse microbial communities, October showed a decline, and November saw partial recovery. Importantly, Boletus mycelium showed different patterns of growth depending on the month and was associated with specific beneficial bacteria and fungi.

The Role of Community Science in DNA-Based Biodiversity Monitoring

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Scientists and the general public are working together to monitor biodiversity using DNA-based methods. These collaborations allow researchers to collect data across wider geographic areas and longer time periods than traditional monitoring alone. Community participants, especially hobby experts and nature enthusiasts, help collect samples and contribute to building the genetic reference databases needed to identify species. Recognition and training of volunteers enhances both data quality and participant satisfaction.

Pomegranate Woody Mycobiota Associated with Wood Decay

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Pomegranate trees in Italy are suffering from a wood disease that causes cankers and browning of the wood, leading to plant death and crop loss. Researchers identified multiple fungal species responsible for this disease, with Neofusicoccum parvum and Diaporthe species being the main culprits. Cold winter temperatures appear to weaken trees, making them susceptible to these fungal infections. Using advanced DNA analysis along with traditional methods, scientists confirmed which fungi cause the most damage and how the disease develops.

Fungal Assemblages in Northern Elms—Impacts of Host Identity and Health, Growth Environment, and Presence of Dutch Elm Disease

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This study examined the different fungi living in elm tree shoots to understand why some elm species are more resistant to Dutch elm disease than others. Researchers found that healthy elms host fewer fungal species compared to diseased trees, and that fungal communities differ significantly between elm species and urban versus rural locations. Importantly, a fungus called Sphaeropsis ulmicola appears to be a significant emerging threat to elms in northern Europe, separate from the classic Dutch elm disease pathogen.

Airborne Fungal Spore Diversity Assessment Using Culture-Dependent and Metabarcoding Approaches in Bat-Inhabited Natural and Anthropogenic Roosts in Portugal

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Researchers studied fungal diversity in bat caves across Portugal using two methods: growing fungi in labs and analyzing DNA from air samples. They found over 280 different types of fungi, with some being common decomposers and others potentially harmful to human health. The study revealed that bat activity and human visits significantly influence which fungi live in caves, highlighting the importance of protecting these unique underground ecosystems.

Comparative Analysis of the Mycobiomes of Two Terrestrial Isopods, Armadillidium vulgare and Spherillo obscurus

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This study compared the fungal communities living on two species of pill bugs found on Korean islands. Researchers discovered that one species, Spherillo obscurus, harbors a much more diverse and varied fungal community than the other species, Armadillidium vulgare, which is dominated by a single fungal genus. Interestingly, the type of isopod species was far more important in determining which fungi lived on them than the geographic location where they were found.

Investigating fungal diversity through metabarcoding for environmental samples: assessment of ITS1 and ITS2 Illumina sequencing using multiple defined mock communities with different classification methods and reference databases

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Scientists developed a comprehensive method for identifying different fungi in environmental samples using DNA sequencing technology called metabarcoding. They tested 37 mixtures of known fungi species to compare different approaches, including which DNA markers to use, which reference databases to search, and which computer analysis methods to apply. The study found that the choice of method significantly affects results, with some approaches better at genus-level identification and others at species identification, helping researchers select the best approach for their specific needs.

Unraveling the mycobiota of Daqu at the species level using metabarcoding of full-length ITS sequences

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Daqu is a special fermentation starter used to make Baijiu, a traditional Chinese alcohol. Researchers analyzed fungi in 296 Daqu samples from across China using advanced DNA sequencing technology. They identified 86 different fungal species and found that the types of fungi present depend on both the temperature during fermentation and the geographic region where the Daqu is made. These findings could help improve the quality and consistency of Baijiu production.

Research Topic: metabarcoding